How we score peptides.
Every Peptide Reviews score reflects five criteria, weighted equally, and goes through a 4-step verification process before publication.
Last updated: May 2026
Five scoring criteria
Evidence Quality — the strength, breadth and replication of the published research.
Transparency — supplier and clinical-trial transparency: lab partners, batch testing, COAs, conflicts of interest.
Safety Clarity — what's known about adverse-event profile, off-label risk and supply-chain safety.
Effectiveness — observed effect sizes in human or relevant model data, weighted by quality.
Value for Research — how useful the available evidence is for someone reasoning about the compound.
The 4-step verification process
Research Analysis — we map peer-reviewed literature, preclinical findings, clinical trial data and regulatory filings.
Data Evaluation — evidence is weighted against the five criteria using a transparent rubric.
Expert Review — editorial reviewers stress-test claims, flag conflicts of interest and document anything that should change the verdict.
Final Verification — a signed-off review goes live with a verification badge, last-updated date and a clear regulatory and safety statement.
When reviews are updated
Reviews change when the underlying evidence does — new trial readouts, regulatory updates, or material changes in supplier or industry practice.
We display the last-updated date on every review. Reviews older than 12 months are flagged for re-evaluation.
Limits of the methodology
Scoring is a tool, not a verdict. A high score is not an endorsement of use, and a low score is not a claim that a compound has no scientific interest.
Where evidence is sparse or contested, the score reflects that uncertainty.